A spaceship moves away from the Earth at a speed v, and fires a shuttle craft in the forward direction at a speed v relative to the ship. The pilot of the shuttle craft forward launches a probe at a speed v relative to the shuttle craft. Detrmine:
a) the speed of the shuttle craft relative to Earth
b) the speed of the probe relative to Earth
The Attempt at a Solution
Im just completely confused with this question, do i have to use Lorentz transformations?? but if so, how do i compute an answer?? please can someone help, completely lost with this one.